" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(9-2x) - (7+x) = (11+3x) - (9-2x)
(9+2x)²=(7+x)(11+3x)
81+36x+4x²=77+21x+11x+3x²
81+36x+4x²-77-21x-11x-3x²=0
x²+4x+4=0
delta=b²-4ac=16-4*1*4=16-16=0
x=-b/2a=-4/2*1=-2
Koniec. Jak będą jakies pytania pisać do mnie.